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Discussion Starter · #1 ·
Is there is an acceptable spec on piston rock?

I'm in the process of assembling my sbc 400(6" rods, so fairly short skirts). About to measure piston to deck height and was wondering what is an acceptable number for piston rock and what all factors affect it.

Any normal ball park figures?
 

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Discussion Starter · #6 ·
I've ran the engine before and, piston to head/valve clearance is/was good(same combination of parts). The reason for teardown was oil burning, which I think i've determined was a combination of bad valve guides and rocker studs leaking into the intake ports. Piston to deck height just wasn't a measurement I had recorded from the initial build.
 
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